Horace a



H. A. MEARS.

Stovepipe Joint.

Patented Oct. 19, 1869.

'liidtrrl fitters pane (attire.

Letters Patent N 95,921, dated October 19, 1869.

STOVE-PIPE.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern.- 3 Be it known that I, HORACE A. MEARs,:of Pecatonica, in the county of Winnebago, and-State 0f Illin0is, 'have invented a new and improved Mode for Securing the Joints in Stove, Stack, and other similar Pipes; and I do hereby declare that the following is a full and exact description thereof, reference being bad to the accompanying drawings, and the letters of reference marked thereon, making part of this specification, in which- I Figure 1 represents portions of a stove-pipe joined together, embodying my invention.

Figures 2, 3, and 4, represent the same disengaged. Figure 5 represents a transverse section through the p joint.

Similar letters of reference represent corresponding parts-in all the figures. I

The object of my invention is to provide a simple and efleotive fastenin g for the joints of stove-pipe, and

also by means of which they can be secured in the collars of fines. f k

A A, &c'., represent portions of a pipe of usual construction, in which (4 represents a raised bead near the ends thereof. y B B, 8m, represent a supplemental joint-piece of smaller size. Y t

This piece is open in the direction of, its length, as

. at b, fig.=3, and has raised beads c 0, near its ends,

madsi to fit into the inside of raised beads or a, in A A, c.

, There .is also a raised head, at, about the centre of its length, and the space between the raised heads is about equal to the distance from the heads a a, in A'.

A, to the ends thereof.

To the inside of B B, 850., are secured the plates 0 e, with prominences f 1, which pass up through the joint-piece B, in openings prepared for them in the head l,i1ear the open edge thereof, and as represented at fig. 5, and in dotted lines in fig. 3.

The prominences f f are inclined toward each other;

and form jaws, between which is inserted the wedge, 71, as at fig l.

The pipe proper, as at A A, is constructed of equal size throughout its length.

In jointing the pipe, the joint-piece B, fig. 3, is

passed into the ends of A A, figs. 2 and 4, until the beads o 0, in B, drop into heads a a, in A A, figs. 2' and ,4, after which the wedge 71. is passed In between the jaws f f, which forces the joint-pieoe B outward against the pipe proper, and the beads are forced into each other, when the pipe will appear as at fig.1,coln-'- plots in the joint.

I also use this device to secure the pipein the thim bles in fines, in which case I construct the thimble as the endof a joint of pipe with raised bead near its outer end, to secure the joint-piece B, in which it is" secured by a wedge, in the same manner as the joints in the pipe are secured.

Thus far I havedesoribed my invention in connection with stove-pipes and flue-thimbles; but it is evi dent that it may be used for jointing other than stove- I pipes, such as stack-pipes, hot-air pipes, 8270., without 

